#include <bits/stdc++.h> using namespace std; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ string s; cin>>s; for(int j=0;j<s.length();j++){ if(s[j]=='a'||s[j]=='e'||s[j]=='i'||s[j]=='o'||s[j]=='u'){ s[j]=s[j]-32; }else if(s[j]>='A'&&s[j]<='Z'&&(s[j]!='A'&&s[j]!='E'&&s[j]!='I'&&s[j]!='O'&&s[j]!='U')){ s[j]=s[j]+32; } } cout<<s<<endl; } }